“umbra”的概念、定义、翻译、参考文献-科学参考

单词	umbra
释义	umbra Physics 光学、声学光学 umbra本影 umbra本影^†，阴影[区] Astronomy umbra本影 Computer 计算机应用计算机辅助设计与图形学释文 umbra本影区
随便看	proton condition proton condition; proton balance proton conduction mechanism proton conductor proton decay proton-deficient isotope proton-deficient nuclide Proton D family upper stage proton distribution proton donor proton drip line proton drip-line proto-nebula proton-electron-proton reaction protonema proton emission protonephridium proton event proton exchange membrane proton-exchange membrane proton exchange membrane fuel cell proton exchange membrane fuel cell (PEMFC) proton exchange membrane, PEM proton excited X-ray fluorescence spectrometry proton excited Xray fluorescence spectrometry

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